Thanks for being an encouragement to a newcomer to your sport. Every sport has those people who view themselves as elitist within that sport, and belittle someone's efforts to get into the sport instead of encouraging them. So again, thanks for being that guy. If you have something useful as to HOW to make this happen, instead of WHY it won't work, please write that here.
I'm not sure that you actually are a newcomer to the sport. Assuming that you aren't trolling us (will give you the benefit of the doubt) you are someone who is interested in becoming a newcomer to the sport.
And sometimes experts in the field can help you by pointing out question that you asked isn't the question that you should be asking. This isn't a legal deposition where we are obligated to keep our comments strictly as replies to your specific questions.
It is VERY hard to make a living in the dive industry, even for people with lots of experience, even for people with lots of capital to support a new business. Not impossible, but difficult. So my advice to you, before even considering all of these issues, would be to get certified as a basic open water diver and see if you actually love scuba diving enough to make it your life.